Improvement in heel and edge polishing machines for boots and shoes



3 v 2Sheets-'S-heet 1.

' L. 'GRAF. HEEL AND EDGE POLISHING-MACHINE FOR BOOTS AND SHOES.

No.174,Z31. Patented Feb.29,1876.

' "TUB WITNESSES N. PETERS, PHOTO-LITHOGRAPHER. WASHINGTON, D. C.

. 2 Shets-S-heet Z.

L. GRAF.

HEEL AND EDGE POLISHING-MACHINE FOR BOOTS A-N'D SHOES.

N0.1'74,Z31. Patented Feb. 29,1876.

N. PETERS, PHOTO-LITHQGRMHER, WASHINGTON. D C.

time";

PATENT OFFIC LEOPQLD GRAB, or NEWARK, ew JERSEY.

' IMPROVEMENT m HEEL-AND EDG E POLISHINGMACHITNES FOR BOOTS AND SHOES. I

V Specification forming part of Letters Patent No. 174,23 1, datedFebruary 29, 1876 application filed I January 3,1876.

To all whom it may concern Be it known that I, LEoPoLDGRAF, of

Newark, in the county-of Essex and State of for the sole-are operated byone and the same driving-shaft, in such manner that bfb'th operationsmay be carried on at the same p The invention also consists of a simplerand better contrivanceof the gear by which the polishers are operated;also of' an arrangement for obtaining a better action of the polishers,and a higher speed of them for a given speed of the driving-shaft thanheretofore obtained; also of an improved contrivance for gaging thepolishers to edges of different thicknesses, and also of an improvedshape of the clamp-frame for holding the shoe, all as hereinafterdescribed.

Figure 1 is aside elevation of my improved machine. Figs. 2 and 3areelevations of the two ends. Fig. 4. is a horizontal section taken 7online as a; of Fig. 1. Fig. 5 is a sectional elevation taken on line yy, and Fig. 6 is a section on line 2 z of Fig. 1. t v

Similar letters of reference indicate corresponding parts.

A is the driving-shaft, which is mounted in the standards B above thetop 0 of the frame, and has a short crank at each end working in asliding box, .-D, fitted in a slotted-polisher carrier, E, which swingson a pivot, F, in the top of the standard B, and carries a polisher,

G or H, at its lower end.

The polisher may be rigidly'attached to the carrier, as at G, but Iprefer to fix it on a pivot, I, inthe lower end of the carrier andconnect it' by an arm, J, and rod or bar, K.

with a stationary object at L, so' that 'it is made to rock on its pivotI at the same time that it swings, thus increasing the speed of .thepolishing surface, and alsoobtaining a better action on account of thesmall circle of the face of the polisher which may be used in sucharrangement, and which gives better results than when made on alargecircle to correspond with the radius of the carrier.

M is an adjustable gauge combined with the polisher and ..fixed to slidealong its face for gaging it to soles of different thicknesses, beingfitted to slide forward and backwardon the pivot I, on which it alsoswings, to correspondwith the swinging of the polisher. It has a forkedprojection, N, embracing the stud T, to' cause it to turn on pivot I,and it has a spring, 0, to push it back and a camblock, P, acting on theprojection N to push it forward, and'the cam-block is connected to ahand-lever, Q, forworking it.

It is a rest for the hands of the attendant to bear against when holdingthe toe of the sole up to the polisherby hand, to enable him to hold theshoe steadier than he could without it.

For polishing the edges of the soles the [boots or shoes will preferablybe held by hand,

but for polishing the heels they will be held in a clamp, S, which isconnected by the ball and socket joint U, fixed in the vibrating frame Wso as to be pressed back to make the bottom of the heel press'firmlyagainst Y the lip y of the polisher. The frame vibrates to raise theheel up to the polisher and lower it away again, and the'ba-r V ispressed back by the weighted-lever a acting on it through thetoggle-piece d and bell-crank b. The I weighted-lever on also raises theboot or shoe up against the polisher. and holds it there while beingpolished and the foot-lever 0 brings it down again. I

f is a sole-plate fitted on one of the bars of the clamp-frame for thesole of the shoe to have a fair bearing on when clamped in the frame.

Havingthus described my invention, I claim as new and desire to secureby Letters Patent 1. A polisher, pivoted at lower end of its 3. Thegagc.Myfittedi-lon theipivobflofcthe sockemjoint.U toveholden. Y,.,havingasliding polisher'aml connected with"'stat iona yzrstudi Imotionfin athe{swinging holden-W,substan- T, substantially as specified. tially asspecified.

4. The combination of sliding gage M spring 0, and the cam-block P,substantialb LEOPOLD GRAF' as specified. Witnesses 5. Thecombinatiomwiththeesoleeplate ofi B; 'M'O'SHER;

clamp-frame S, connected, by the ball-and- ALEX. F. ROBERTS.

